Dope-cup



(No Model.)

J. ROBINSON.-

DOPE 0UP.

Patented July 29, 1890.

\A/ilv gsses:

MI W 06% UNITED STATES PATENT OFFICE.

JOHN ROBINSON, or DETROIT, MICHIGAN.

DOPE-CUP.

SPECIFICATION forming part of Letters Patent No. 433,149, dated July 29, 1890.

Application filed April 1, 1890. Serial No. 346,240. (No model.)

To all whom, it may concern.-

Be it known that I, JOHN ROBINsON, a citizen of the United States, residing at Detroit, in the county of \Vayne and State of Michigan, have invent-ed certain new and useful Improvements in Dope-Cups, of which the following is a specification, reference being had therein to the accompanying drawings.

This invention relates to new and useful improvements in dope'cups; and the invention consists in the peculiar construction of mechanism for making a constant force-feed of the dope to a crank-pin or other point desired to be oiled, the motion of the feed mechanism being imparted from the movement of the machinery, and, further, in the peculiar construction, arrangement, and combination of the various parts, all as more fully hereinafter described.

I have shown my cup as applied to a crankpin in the accompanying drawings, in which- Figure 1 is a side elevation of my device as in use. Fig. 2 is an enlarged elevation of the cup,with the casing in vertical central section. Fig. 3 is a horizontal section on line a; a"; Fig. 2. Fig. 4 is a horizontal section of the stem on liney y, Fig. 2.

A is the casing, having a suitable hollow shank B exteriorly threaded to be secured upon the crank-shaft above the pin, and havtrally within the casing, and having secured to its lower end the piston-head D, fitting closely the inside of the casing. The stem D is provided with a keyway a its entire length, in which engages a feather upon the collar E, the upper one of which is secured to the top of the cap and the lower one to the partition F.

G is an annular pinion interiorly screwthreadcd to receive the screw-threaded stem D, and secured between the collars E. Motion is imparted to thispinion from the wormgear 0, formed upon the collar (1, which is loosely sleeved upon the shaft ll, extending through the cap upon one side, its outer end being provided with a ratchet-wheel l and the bell-crank lever I, the arm (2 of which carries the spring-pawl f, engaging with the ratchetwheel I, the arm g of which is pivotally con nected to the connecting-rod h, which, at its lower end, connects to the pin 1', which is secured upon the adjustable plate j, which is secured to the crank-pin it by means of the set-screw Z, engaging in a slotted bearing Z, all so arranged that the movement of the crank with its pin carrying the plate j and the pin 2', which is cccentrically arranged in relation to the crank-pin, will rock the bellcrank lever l.

The rocking movement of the bell-crank lever upon its pivot willturn the ratchet-wheel I one or more notches through the medium of the pawl fithus causing the rotation of the shaft H and the sleeve d, having the wormgear 0 meshing with the pinion G, causing it to rot-ate, and by means of its interior screwthread will lower the stem D, which is prevented from rotating by means of. the feather upon the collar E engaging in the keyway a, thus gradually forcing down the piston-head D and feeding the dope through the aperture in the shank B to the pin to be oiled.

To cause the collard to turn with the shaft 11, I form a squared portion m upon the shaft H, upon which is slidingly secured the clutch 7t, having pins 0 engaging suitable apertures in the collar (Z, and held in such position by means of the spring 1) bearing against the lever g, which is pivoted at g. This lever has the forward-projecting arm 0', having the head 1', which is provided on its inner surface with an inclined face 1". A pin .9 upon the lever r engages in the groove 3 in the clutch.

t is a pinion secured upon the collar d, meshing with the bevel gear-wheel t upon the shaft t which projects through the casing, and to which is secured a suitable crank-handie it.

The parts being thus constructed,theiroperation is as follows: The stem is raised to its highest position by turning upon the crank it, which imparts motion through the gear-wheel 2 and pinion 25 to the. collar d, reversing the motion of the stem D and lifting the pistonhead D to its highest position. The cup may be now filled with dope and the cap secured in position. The motion of the crank will operate as above described and depress the piston-head D to feed the dope to the pin. Vhen the pin has reached the bottom of its movement, in order that the parts may not be damaged by its further progress, the head D of the stem will strike upon the inclined face 4"", throw the lever q against the action of the springp, and disengage the pins 0 from the apertures in the collar d. The further motion of the machinery will simply rotate the shaft H loosely within the collar d without imparting motion to the same.

, In order to make the cup feed more or less rapidly, I adjust the adjustable platej in or out from the center of the crank-pin,thereby giving more or less movement to the bellcrank lever and to the operating mechanism.

What I claim as my invention is- 1. In an oil-cup, a Vertically-moving piston, means for forcing the same down, and a trip engagin g with the piston when it is at its lowest point for disengaging the operating means, substantially as described.

2. In an oil-cup, a vertically-movable pisrton, a worm-gear engaging the same for forcing it down, means for actuating the gear, and a trip operated by the piston to disengage the gear from its operating means, substantially as described.

3. In a dope-cup, the combination of the casing, the screw-threaded PlStOH-Stlll, the shaft H, and connecting-gearing, connection between an eccentric-pint upon the crankpin, and the shaft H for imparting motion thereto, the collar (1 upon said shaft, the clutch n, having pins 0, engaging with said collar, the spring 19, lever q, arm a, head 0", incline r, adapted to be struck by the head D of the stem, substantially as-described.

4. In an oil-cup, the combination, with the screw-threaded stemof apiston, of aworin-gear for operating the same, a shaft on which said gear is loosely mounted, a clutch, and a trip for actuating the clutch when the piston is at its lowermost point, substantially as described;

5. In an oil-cup, the combination, with the screw-threaded stem of a piston, of a gearwheel snrroundingthe same having a threaded center, a worm-gear meshing with the gear,

means for actuating the Worm, and a clutch operated by the movement of the stem for disengaging the worm-actuating means from the worm, substantially as described.

6. In an oil-cup, the combination of the stem of a piston and means for forcing the a same down, of an inclined trip for engaging with the stem while on its downward move-,

Jenn nomnson.

Witnesses:

M. B. ODoeHnRTY, P. M. HULBERT. 

